Freeze horizon

{
  "id": "MLC-T-AVN-000430",
  "term": "Freeze horizon",
  "field": "Aviation and air traffic control",
  "definition": "The time or point at which an aircraft's STA becomes fixed and no longer fluctuates with each radar update. This setting ensures a constant time for each aircraft, necessary for the metering controller to plan his/her delay technique. This setting can be either in distance from the meter fix or a prescribed flying time to the meter fix.",
  "references": [
    "FAA Pilot/Controller Glossary"
  ],
  "url": "https://mlchart.com/terminology/aviation/freeze-horizon/"
}